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Implement custom sockloop

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- s.t. server only attempts sending data when there is an available request
- s.t. dns requests are responded to in-order
- ensures that rtt stays consistent
- ensures that congestion control isn't tripped
- ensures that dns resolver isn't tripped
This commit is contained in:
Jop Zitman 2024-12-29 17:23:48 +08:00
parent 3350be382c
commit ee59a67164
10 changed files with 336 additions and 414 deletions
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1
include/slipstream.h
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@ -19,7 +19,6 @@ extern "C" {
#define SLIPSTREAM_QLOG_DIR "./qlog";
int picoquic_slipstream_client(int listen_port, char const* resolver_addresses_filename, const char* domain_name,
const char* cc_algo_id);

62
include/slipstream_dns_request_buffer.h
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@ -1,62 +0,0 @@
#ifndef SLIPSTREAM_DNS_REQUEST_BUFFER
#define SLIPSTREAM_DNS_REQUEST_BUFFER
#include <stdbool.h>
#include <picohash.h>
#include "SPCDNS/src/dns.h"
#define GLOBAL_BUFFER_SIZE 32
typedef struct st_slipstream_cnxid_dns_request_buffer_t slipstream_cnxid_dns_request_buffer_t;
typedef struct st_element_t {
dns_decoded_t dns_decoded[DNS_DECODEBUF_4K];
struct sockaddr_storage peer_addr;
struct sockaddr_storage local_addr;
struct st_element_t* buffer_prev;
struct st_element_t* buffer_next;
struct st_element_t* cnxid_buffer_prev;
struct st_element_t* cnxid_buffer_next;
slipstream_cnxid_dns_request_buffer_t* cnxid_buffer;
uint64_t created_time;
int query_id;
} slot_t;
typedef struct st_slipstream_cnxid_dns_request_buffer_t {
slot_t* head;
slot_t* tail;
} slipstream_cnxid_dns_request_buffer_t;
typedef struct {
slot_t slots[GLOBAL_BUFFER_SIZE];
slot_t* head;
slot_t* tail;
slot_t* free;
picohash_table* cnxid_to_cnxid_buffer;
slipstream_cnxid_dns_request_buffer_t** cnxid_buffers;
size_t cnxid_buffers_len;
} slipstream_dns_request_buffer_t;
typedef struct st_cnxid_to_cnxid_buffer_t {
picoquic_connection_id_t cnx_id;
slipstream_cnxid_dns_request_buffer_t* cnxid_buffer;
} cnxid_to_cnxid_buffer_t;
void slipstream_dns_request_buffer_init(slipstream_dns_request_buffer_t* buffer);
slipstream_cnxid_dns_request_buffer_t* slipstream_dns_request_buffer_get_cnxid_buffer(
slipstream_dns_request_buffer_t* buffer, picoquic_connection_id_t* initial_cnxid, bool create);
void slipstream_dns_request_buffer_free_slot(slipstream_dns_request_buffer_t* buffer, slot_t* slot);
slot_t* slipstream_dns_request_buffer_get_write_slot(slipstream_dns_request_buffer_t* buffer);
void slipstream_dns_request_buffer_commit_slot_to_cnxid_buffer(slipstream_dns_request_buffer_t* buffer,
slipstream_cnxid_dns_request_buffer_t* cnxid_buffer,
slot_t* slot);
slot_t* slipstream_dns_request_buffer_get_read_slot(slipstream_dns_request_buffer_t* buffer,
slipstream_cnxid_dns_request_buffer_t* cnxid_buffer);
#endif //SLIPSTREAM_DNS_REQUEST_BUFFER

17
include/slipstream_slot.h Normal file
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@ -0,0 +1,17 @@
#ifndef SLIPSTREAM_SLOT
#define SLIPSTREAM_SLOT
#include "SPCDNS/src/dns.h"
#include "picoquic.h"
typedef struct st_slot_t {
dns_decoded_t dns_decoded[DNS_DECODEBUF_4K];
dns_rcode_t error;
struct sockaddr_storage peer_addr;
struct sockaddr_storage local_addr;
picoquic_cnx_t* cnx;
uint64_t created_time;
int query_id;
} slot_t;
#endif // SLIPSTREAM_SLOT

8
include/slipstream_sockloop.h Normal file
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@ -0,0 +1,8 @@
#ifndef SLIPSTREAM_SOCKLOOP_H
#define SLIPSTREAM_SOCKLOOP_H
#include "picoquic_packet_loop.h"
void* slipstream_packet_loop(picoquic_network_thread_ctx_t* thread_ctx);
#endif //SLIPSTREAM_SOCKLOOP_H